1.We must water these young trees ofen,(改为被动语态).
问题描述:
1.We must water these young trees ofen,(改为被动语态).
答
These young trees must be watered often by us.
注释:water的过去分词直接加ed,不能双写r
答
These young trees must often be waterred.
答
these young trees must be watered often